A) Iron
B) Fluoride
C) Lead
D) Nitrate
Correct Answer: D
Solution :
Parameters Maximum prescribed conc. in drinking water Iron 0.2 ppm Fluoride 1.5 ppm Lead 50 ppb Nitrate 50 ppm Hence the concentration of nitrate in a given water sample exceeds from the upper limit as given above.You need to login to perform this action.
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